CN117262340B

CN117262340B - Automatic film paper wrapping production line for box body products

Info

Publication number: CN117262340B
Application number: CN202311567747.0A
Authority: CN
Inventors: 袁华辉; 周钰恒
Original assignee: Suzhou Sirong Intelligent Equipment Co ltd
Current assignee: Suzhou Sirong Intelligent Equipment Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-02-02
Anticipated expiration: 2043-11-23
Also published as: CN117262340A

Abstract

The invention discloses an automatic film paper wrapping production line of box body products, which comprises a carrier circulating conveying line, a film paper feeding unit, a film paper pre-bending unit and a film paper wrapping unit, a film paper carrying mechanism for carrying film paper from the film paper feeding unit to the paper pre-bending unit and the film paper wrapping unit in sequence, a first carrying mechanism for taking a packing box out of the carrier circulating conveying line and then placing the packing box into the film paper wrapping unit, and a second carrying mechanism for taking the packing box wrapped with the film paper out of the film paper wrapping unit and then placing the packing box into the carrier circulating conveying line. The automatic film paper feeding and pre-bending and automatic packaging and pasting actions of the outer surface of the packaging box are realized, and the packaging efficiency is greatly improved.

Description

Automatic film paper wrapping production line for box body products

Technical Field

The invention belongs to the technical field of film paper packaging, and particularly relates to an automatic film paper packaging production line for box body products.

Background

At present, a product is placed in a packaging box, six layers of film paper are required to be coated on the outer surface of the packaging box, an adhesive part is arranged at the edge of the film paper, and the film paper is coated on the surface of the packaging box by the adhesive part to prevent falling. In the prior art, no automatic equipment is provided for realizing the automatic wrapping operation of the film paper, and if the production efficiency is improved and the automatic production is realized, a new film paper automatic wrapping production line of a box product is necessary to be provided for solving the technical problems.

Disclosure of Invention

The invention mainly aims to provide a film paper automatic wrapping production line for box body products, which realizes the actions of automatic feeding, pre-bending and automatic wrapping and pasting of film paper on the outer surface of a packaging box, and greatly improves the packaging efficiency.

The invention realizes the aim through the following technical scheme: the utility model provides an automatic parcel production line of membrane paper of box body product, its includes carrier circulation transfer chain, follows the carrier circulation transfer chain sets gradually membrane paper feed unit, membrane paper are bent unit and membrane paper wrapping unit in advance, follow on the membrane paper feed unit membrane paper carry in proper order to the unit of bending in advance with membrane paper transport mechanism on the membrane paper wrapping unit, follow the packing carton take out the back of putting in the carrier circulation transfer chain first transport mechanism in the membrane paper wrapping unit and will wrap up the packing carton that has membrane paper follow take out the back of membrane paper wrapping unit and place the second transport mechanism in the carrier circulation transfer chain.

Further, the carrier circulation transfer chain is including upper and lower parallel arrangement's first transfer chain and second transfer chain, set up first transfer chain both ends are realized first transfer chain with the carrier elevating system of second transfer chain butt joint, first transfer chain with carry on the second transfer chain and set up first transfer chain material loading end top detects whether the packing carton has the detection camera of correctly placing in the carrier.

Further, the carrier comprises a bottom plate and a packing box bearing groove arranged on the bottom plate, wherein the packing box bearing groove is formed by surrounding a pair of first enclosing baffles and a pair of second enclosing baffles, the pair of second enclosing baffles are arranged on the bottom plate in a sliding manner, and the pair of second enclosing baffles and the corresponding first enclosing baffles are connected together through a pair of first elastic pieces respectively to keep a clamping state; the first conveying line is correspondingly provided with a plurality of stopping and positioning mechanisms for stopping and positioning the carrier and an opening and clamping module for driving the carrier to be in an open state.

Further, the film paper feeding unit comprises a film paper bin carrying a plurality of layers of film paper units, a first supporting slideway in butt joint with the film paper bin, a material pulling module for pulling the film paper units in the film paper bin onto the first supporting slideway, and a paper separating module for preventing the film paper conveying mechanism from sticking materials when absorbing the film paper; the membrane paper unit comprises a membrane paper carrier plate and a plurality of membrane papers stacked on the membrane paper carrier plate; the film paper bin comprises a first motor, a bin bracket driven by the first motor to move up and down, and a plurality of layers of storage cavities arranged on the bin bracket at intervals up and down, wherein the bottom of the storage cavity is provided with a second support slideway matched and butted with the first support slideway; each layer of storage cavity is internally provided with one film paper unit; the material pulling module comprises a first air cylinder and a material pulling claw driven by the first air cylinder to horizontally move, and a clamping groove with an outward opening and used for the material pulling claw to extend in is formed in one side edge of the film paper carrier plate.

Further, the film paper conveying mechanism comprises a third motor, a first supporting plate driven by the third motor to horizontally move, and a first conveying module and a second conveying module which are arranged on the first supporting plate; wherein:

the first carrying module is used for adsorbing the film paper from the film paper feeding unit and placing the film paper into the film paper pre-bending unit, and comprises a fourth motor fixed on the first supporting plate, a second supporting plate driven by the fourth motor to move up and down, and a plurality of first adsorption assemblies arranged on the second supporting plate;

the second carrying module is used for absorbing the film paper which is pre-bent and torn off from the film paper pre-bending unit and placing the film paper in the film paper wrapping unit, and comprises a fifth motor fixed on the first supporting plate, a third supporting plate driven by the fifth motor to move up and down, and a plurality of second absorption components arranged on the third supporting plate.

Further, the paper is bending unit in advance includes first absorption supporting platform, around setting up a plurality of dyestripping modules of first absorption supporting platform side, embedded setting are in first absorption supporting platform and carry out the first membranous paper positioning module of accurate location to the position of membranous paper, embedded setting are in a plurality of die block modules of bending in the first absorption supporting platform and with die block module cooperation of bending realizes the last die block of bending of membranous paper in advance.

Further, the film sheet includes a bottom surface region, a front side surface region and a rear side surface region adjacent to two long side sides of the bottom surface region, a left side surface region and a right side surface region adjacent to two short side sides of the bottom surface region, and an upper side surface region adjacent to a top edge of the rear side surface region; lifting lugs are arranged at the top edges of the upper side surface area, lap joint parts are arranged at the left side edge and the right side edge of the rear side surface area, a first pasting part is arranged at the top edge of the front side surface area, second pasting parts are arranged at the top edges of the left side surface area and the right side surface area, release paper is arranged at the first pasting part and the second pasting part area, and the film tearing module is used for tearing off the release paper at the pasting parts;

the position on the film paper, which is required to be pre-bent, comprises a first dividing line between the first pasting part and the front side surface area, a second dividing line between the front side surface area and the bottom surface area, a third dividing line between the bottom surface area and the rear side surface area, a fourth dividing line between the rear side surface area and the lifting lug, a fifth dividing line between the rear side surface area and the left side lap joint part, and a sixth dividing line between the rear side surface area and the right side lap joint part; the bending bottom die module and the bending upper die module are used for pre-bending the film paper at the six boundary lines.

Further, the first film paper positioning module comprises a first positioning component for positioning the left side and the right side of the film paper front side area, a second positioning component for positioning the left side and the right side of the film paper rear side area, a third positioning component for positioning the left side positions of a second dividing line and a third dividing line, and a fourth positioning component for positioning the right side positions of the second dividing line and the third dividing line;

the first positioning assembly and the second positioning assembly both comprise a second cylinder and a first limiting clamping plate which is driven by the second cylinder to be mutually close or mutually open;

the third positioning assembly and the fourth positioning assembly comprise a third air cylinder, a fourth supporting plate driven by the third air cylinder to move forwards and backwards, a second limiting clamping plate and a third limiting clamping plate which are arranged on the fourth supporting plate in a sliding manner relative to the moving direction of the fourth supporting plate, and a second elastic piece which enables the second limiting clamping plate and the third limiting clamping plate to mutually prop open and keep an open state; the first limiting clamp plate, the second limiting clamp plate and the third limiting clamp plate all penetrate through the first adsorption supporting platform from bottom to top; the first adsorption supporting platform is provided with a first guide chute for adjusting the distance between the second limiting clamp plate and the third limiting clamp plate, and the second limiting clamp plate and the third limiting clamp plate upwards penetrate through the first guide chute.

Further, the bending upper die set is integrally arranged on a second carrying die set in the film paper carrying mechanism; the bending upper die set comprises a fourth cylinder and a bending press head driven by the fourth cylinder to move up and down; the first adsorption supporting platform is provided with a plurality of positioning columns, and the second carrying module is provided with positioning holes matched with the positioning columns for positioning.

Further, the dyestripping module includes the fifth cylinder, receives the fifth cylinder drives and is close to or keep away from the fifth backup pad at membrane paper edge, fixes sixth cylinder in the fifth backup pad, receives the sixth cylinder drives along the second slider of dyestripping direction horizontal migration, one end rotation set up swing mounting panel on the second slider, fix the seventh cylinder and the first guide roller of swing mounting panel other end, receive the seventh cylinder drives and opens or hold the first clamping jaw of action and fix in the fifth backup pad and with first guide roller cooperation drive swing mounting panel swing realization first clamping jaw highly variable deflector, be provided with the second guide spout on the deflector, first guide roller stretches into in the second guide spout.

Further, the method comprises the steps of, the film paper wrapping unit comprises a first wrapping station, a second adsorption supporting platform, a front supporting plate, a rear supporting plate, a front top pushing module, a rear top rolling module, a front side pushing module and a front side rolling module, wherein the first wrapping station and the second wrapping station are sequentially arranged along the conveying direction of a carrier circulating conveying line, the second adsorption supporting platform is arranged at the first wrapping station and has a lifting function, the front supporting plate and the rear supporting plate are arranged at the front and rear sides of the second adsorption supporting platform and are used for bearing film paper, the front top pushing module is arranged below the front supporting plate and pushes a first pasting part on the front side area of the film paper onto the top surface of a packaging box, the rear top rolling module is arranged below the rear supporting plate and pushes the upper side area of the film paper onto the top surface of the packaging box and is pasted with the first pasting part the back side rolling module is arranged below the back top rolling module and covers the film paper back side area on the back side surface of the packing box, the pair of corner side rolling modules are arranged at the back side of the second adsorption supporting platform and lay two lap joints of the film paper back side area on the left side surface and the right side surface of the packing box, the left side rolling module and the right side rolling module are arranged at the left side and the right side of the second adsorption supporting platform and lay the film paper back side area and the right side area on the left side surface and the right side surface of the packing box respectively the film paper packaging machine comprises a first film paper locating module for locating the film paper outline on a first adsorption supporting platform, a transfer module for transferring a packaging box assembly from a first film coating station to a first film coating station, a lifting supporting platform arranged at the first film coating station, a lifting lug back locating module arranged at the joint of a film paper lifting lug and an upper side surface area pressed at the rear side of the lifting supporting platform, a lifting lug back locating module arranged at the joint of the film paper lifting lug and the upper side surface area, a first film paper lifting lug and a second film coating station, a second film paper lifting lug and a third film lifting lug and a fourth film lifting lug, the upper top rolling module for carrying out secondary rolling on the upper side surface area of the film paper at the top of the packaging box assembly is arranged on the front side of the lifting support platform and matched with the lifting lug back positioning module to carry out outward turning and bending on the lifting lug.

Further, the second adsorption supporting platform comprises a sixth motor, an adsorption supporting plate driven by the sixth motor to move up and down, and supporting frames fixed on the left side and the right side of the adsorption supporting plate and used for supporting the left side area and the right side area of the film paper;

the front pushing die assembly comprises a ninth air cylinder fixed on the lower surface of the front supporting plate and a first pressing plate driven by the ninth air cylinder to move back and forth;

the rear top rolling module comprises a seventh motor fixed on the lower surface of the rear supporting plate and a first rolling wheel driven by the seventh motor to move forwards and backwards;

the front rolling die set and the rear rolling die set comprise a tenth air cylinder and a second rolling wheel driven by the tenth air cylinder to move back and forth;

the corner side rolling die assembly comprises an eleventh air cylinder, a sixth supporting plate driven by the eleventh air cylinder to move left and right, a twelfth air cylinder fixed on the sixth supporting plate and a third rolling wheel driven by the twelfth air cylinder to move back and forth;

the left rolling die assembly and the right rolling die assembly comprise two first sub-modules which are oppositely arranged left and right, and a lifting driving assembly; the first submodule comprises a thirteenth air cylinder, a seventh supporting plate driven by the thirteenth air cylinder to move left and right, an eighth supporting plate arranged on the seventh supporting plate in a vertical sliding mode, a fourth rolling wheel and a fourteenth air cylinder which are arranged on the eighth supporting plate, and a second pressing plate driven by the fourteenth air cylinder to horizontally move above the fourth rolling wheel; the lifting driving assembly drives the eighth supporting plate to move up and down on the seventh supporting plate;

The second film paper positioning module comprises four second sub-modules, wherein the four second sub-modules are arranged in a pairwise manner to position the front and back positions of the left side surface area and the right side surface area of the film paper, and simultaneously position the left and right positions of the bottom surface area of the film paper; the second submodule comprises a fifteenth air cylinder and a fifth limit baffle driven by the fifteenth air cylinder to move left and right;

the lifting lug back positioning module comprises an eighteenth air cylinder, a twenty-fifth air cylinder driven by the eighteenth air cylinder to move up and down, and a third pressing plate driven by the twenty-fifth air cylinder to move back and forth;

the top rolling module comprises an eleventh motor, a nineteenth air cylinder driven by the eleventh motor to move back and forth, and a fifth rolling wheel driven by the nineteenth air cylinder to move up and down;

the lifting lug bending and rolling module comprises a twentieth cylinder, a twenty-first cylinder driven by the twentieth cylinder to move up and down, and a sixth rolling wheel driven by the twenty-first cylinder to move back and forth.

Further, the transfer module comprises a ninth motor and two first clamping modules driven by the ninth motor to move left and right;

The first clamping module comprises a ninth supporting plate driven by the ninth motor to move left and right, a sixteenth air cylinder fixed on the ninth supporting plate, a tenth supporting plate driven by the sixteenth air cylinder to move back and forth, a first front side clamping plate, a second front side clamping plate, a seventeenth air cylinder fixed on the tenth supporting plate, and a second clamping jaw driven by the seventeenth air cylinder to clamp left and right and open.

Further, the first carrying mechanism and the second carrying mechanism each comprise a twelfth motor, an eleventh supporting plate which is driven by the twelfth motor to move back and forth between the first coating station and the carrier circulating conveying line or between the second coating station and the carrier circulating conveying line, a thirteenth motor fixed on the eleventh supporting plate, a twelfth supporting plate which is driven by the thirteenth motor to move up and down, and a second clamping module arranged on the twelfth supporting plate.

Compared with the prior art, the film paper automatic wrapping production line for the box body product has the beneficial effects that: the automatic feeding of the film paper, the automatic film tearing of release paper on the film paper, the automatic pre-bending of the film paper bending part, the automatic wrapping of the film paper on the packaging box and the like are realized, and the production efficiency of film paper wrapping of a box body product is greatly improved.

Drawings

FIG. 1 is a schematic diagram of a film and a package according to an embodiment of the present invention;

FIG. 2 is a schematic view showing an unfolding structure of a piece of film paper according to an embodiment of the invention;

FIG. 3 is a schematic perspective view of an embodiment of the present invention;

FIG. 4 is a schematic top view of an embodiment of the present invention;

FIG. 5 is a schematic view of a carrier circulation line according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a carrier, a stop positioning mechanism, and an open clamp module according to an embodiment of the present invention;

FIG. 7 is a schematic view showing a structure of a film paper feeding unit according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a film stock bin according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a material pulling module and a paper separating module according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a film carrying mechanism according to an embodiment of the present invention;

FIG. 11 is a schematic view of a portion of a second handling module according to an embodiment of the invention;

FIG. 12 is a schematic diagram of a film pre-bending unit according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of an explosion structure of a first adsorption support platform and a first film positioning module according to an embodiment of the present invention;

FIG. 14 is a schematic structural view of a first film positioning module according to an embodiment of the present invention;

FIG. 15 is a schematic top view of a first adsorption support platform with a piece of membrane paper thereon according to an embodiment of the present invention;

FIG. 16 is an enlarged schematic view of the combination of the bending base and the bending press head according to the embodiment of the present invention;

FIG. 17 is a schematic diagram of a layout structure of a film tearing module according to an embodiment of the present invention;

FIG. 18 is a schematic diagram of a film tearing module according to an embodiment of the present invention;

FIG. 19 is a schematic view of a part of an exploded structure of a film tearing module according to an embodiment of the present invention;

fig. 20 is a schematic perspective view of a film wrapping unit according to an embodiment of the present invention;

FIG. 21 is a schematic top view of a film wrapping unit according to an embodiment of the present invention;

fig. 22 is a schematic front view of a film wrapping unit according to an embodiment of the present invention;

FIG. 23 is a schematic structural view of a second adsorption support platform according to an embodiment of the present invention;

FIG. 24 is a schematic perspective view of a front support plate, a rear support plate, a front top pushing module, a rear top rolling module, a front side rolling module, and a rear side rolling module according to an embodiment of the present invention;

FIG. 25 is a schematic side view of a front support plate, a rear support plate, a front top pushing module, a rear top rolling module, a front side rolling module, and a rear side rolling module according to an embodiment of the present invention;

FIG. 26 is a schematic diagram of a corner side rolling module according to an embodiment of the present invention;

FIG. 27 is a schematic view of a left-right rolling module according to an embodiment of the present invention;

FIG. 28 is a schematic structural view of a second film positioning module according to an embodiment of the present invention;

FIG. 29 is a schematic view of a transfer module according to an embodiment of the present invention;

FIG. 30 is a schematic view of the structure at a second film coating station according to an embodiment of the present invention;

FIG. 31 is a schematic diagram of a first transporting mechanism and a second transporting mechanism according to an embodiment of the present invention;

FIG. 32 is a schematic side view of a second clamping module according to an embodiment of the invention;

FIG. 33 is a schematic perspective view of a second clamping module according to an embodiment of the invention;

the figures represent the numbers:

100-film paper automatic wrapping production line of box body products;

200-packaging box;

300-film paper, 301-bottom area, 302-front side area, 303-rear side area, 304-left side area, 305-right side area, 306-upper side area, 307-tab, 308-overlap, 309-first adhesive part, 310-second adhesive part, 320-first dividing line, 330-second dividing line, 340-third dividing line, 350-fourth dividing line, 360-fifth dividing line, 370-sixth dividing line;

the device comprises a 1-carrier circulating conveying line, a 11-first conveying line, a 12-second conveying line, a 13-carrier lifting mechanism, a 14-carrier, a 141-bottom plate, a 142-packaging box bearing groove, a 143-first enclosing baffle plate, a 144-second enclosing baffle plate, a 145-first elastic piece, a 146-supporting roller, a 147-first sliding block, a 15-detecting camera, a 16-stopping positioning mechanism, a 161-stopping module, a 162-side pushing positioning module and a 17-clamping opening module;

2-film paper feeding units, 21-film paper bins, 211-first motors, 212-bin brackets, 213-storage cavities, 2131-second support slides, 2132-second limit baffles, 214-first sensors, 215-second sensors, 22-first support slides, 23-material pulling modules, 231-first cylinders, 232-material pulling hooks, 24-paper separating modules, 241-second motors, 242-material separating deflector rods, 25-film paper carrier plates, 251-first limit baffles, 252-sliding rollers and 253-clamping grooves;

the bending press comprises a 3-film paper pre-bending unit, a 31-first adsorption supporting platform, a 311-sucking disc, a 312-positioning column, a 313-first guide chute, a 32-film tearing module, a 321-fifth cylinder, a 322-fifth supporting plate, a 323-sixth cylinder, a 324-second sliding block, a 325-swing mounting plate, a 326-seventh cylinder, a 327-first guide roller, a 328-first clamping jaw, a 329-guide plate, a 3291-second guide chute, a 3210-third sensor, a 3211-suction pipe, a 33-first film paper positioning module, a 331-first positioning component, a 332-second positioning component, a 3321-second cylinder, a 3322-first limiting clamp, a 333-third positioning component, a 3331-third cylinder, a 3332-fourth supporting plate, a 3333-second limiting clamp, a 3334-third limiting clamp, a 3335-second elastic component, a 334-fourth positioning component, a 34-bending die set, a 341-base, a 342-line forming groove, a 35-bending upper die, a 351-fourth bending die, a 352-fourth cylinder, a 352-eighth pressing die set and an eighth pressing block;

4-film paper wrapping unit, 41-second adsorption supporting platform, 411-sixth motor, 412-adsorption supporting plate, 413-supporting frame, 414-avoidance notch, 42-front supporting plate, 421-third limit baffle, 43-rear supporting plate, 431-fourth limit baffle, 44-front top pushing module, 441-ninth cylinder, 442-first platen, 45-rear top rolling module, 451-seventh motor, 452-first rolling wheel, 46-front side rolling module, 461-tenth cylinder, 462-second rolling wheel, 47-rear side rolling die set, 48-corner side rolling module, 481-eleventh cylinder, 482-sixth supporting plate, 483-twelfth cylinder, 484-third rolling wheel, 49-left and right side rolling module, 491-first sub-module, 4911-thirteenth cylinder, 4912-seventh supporting plate, 4914103-eighth supporting plate, 49131-supporting block, 32-pin, 4914-fourth rolling wheel, 4915-fourteenth cylinder, 4916-second rolling wheel 492, 4921-eighth rolling module, 4921-second driving die set, 4921-seventeenth cylinder, 4935-second supporting plate, 4935-fourth cylinder, 42035-seventeenth cylinder, 42035-fourth supporting plate, 42035-fourth cylinder, 42035-seventeenth cylinder, 42035-fourth supporting plate, 42035-ninth cylinder, 42035-fourth supporting plate, and 35-ninth supporting plate, 4203-synchronous belt, 430-lifting support platform, 4301-tenth motor, 4302-lifting plate, 440-lifting ear back positioning module, 4401-eighteenth cylinder, 4402-twenty-fifth cylinder, 4403-third pressing plate, 450-top rolling module, 4501-eleventh motor, 4502-nineteenth cylinder, 4503-fifth rolling wheel, 460-lifting ear bending rolling module, 4601-twentieth cylinder, 4602-twenty-first cylinder, 4603-sixth rolling wheel;

5-film paper conveying mechanism, 51-third motor, 52-first supporting plate, 53-first conveying module, 531-fourth motor, 532-second supporting plate, 533-first adsorption component, 54-second conveying module, 541-fifth motor, 542-third supporting plate, 543-second adsorption component, 544-positioning hole;

6-first conveying mechanism, 61-twelfth motor, 62-eleventh supporting plate, 63-thirteenth motor, 64-twelfth supporting plate, 65-second clamping module, 651-twenty-second cylinder, 652-adsorption plate, 653-thirteenth supporting plate, 6531-third guiding chute, 654-twenty-third cylinder, 655-second front and rear side clamping plate, 6551-second guiding roller, 656-fourteenth supporting plate, 657-twenty-fourth cylinder, 658-third clamping jaw, 659-connecting plate; 7-a second carrying mechanism.

Detailed Description

Embodiment one:

referring to fig. 1-33, the present embodiment is an automatic film wrapping production line 100 for box products, which includes a carrier circulation conveyor line 1, a film feeding unit 2, a film pre-bending unit 3 and a film wrapping unit 4 sequentially disposed along the carrier circulation conveyor line 1, a film conveying mechanism 5 for conveying film 300 from the film feeding unit 2 to the film pre-bending unit 3 and the film wrapping unit 4 sequentially, a first conveying mechanism 6 for taking out a package box 200 from the carrier circulation conveyor line 1 and then placing the package box 200 wrapped with the film 300 into the film wrapping unit 4, and a second conveying mechanism 7 for taking out the package box 200 wrapped with the film 300 from the film wrapping unit 4 and then placing the package box into the carrier circulation conveyor line 1.

The carrier circulation conveying line 1 comprises a first conveying line 11 and a second conveying line 12 which are arranged in parallel up and down, a carrier lifting mechanism 13 arranged at two ends of the first conveying line 11 and used for realizing butt joint of the first conveying line 11 and the second conveying line 12, a carrier 14 conveyed on the first conveying line 11 and the second conveying line 12 and a detection camera 15 arranged above a feeding end of the first conveying line 11 and used for detecting whether the packaging box 200 is placed correctly or not.

The first conveying line 11 is provided with a stop positioning mechanism 16 for stopping and positioning the carrier 14 and an opening clamp module 17 for driving the carrier 14 to be in an open state at the working positions corresponding to the first conveying mechanism 6 and the second conveying mechanism 7 and at the product loading and unloading stations.

The carrier 14 includes a bottom plate 141 and a packing box receiving groove 142 disposed on the bottom plate 141, wherein the packing box receiving groove 142 is surrounded by a pair of first surrounding plates 143 and a pair of second surrounding plates 144, and the pair of second surrounding plates 144 are slidably disposed on the bottom plate 141 and are respectively connected with the corresponding first surrounding plates 143 through a pair of first elastic members 145 to maintain a clamping state. In this embodiment, the first surrounding baffle 143 and the second surrounding baffle 144 are all L-shaped and distributed at four corners of the package box holding groove 142, so as to realize accurate clamping and positioning of the package box 200. In other embodiments, the first and second surrounding baffles 143 and 144 may be provided in a plate shape and distributed at four sides of the package receiving slot 142. The bottom of the packing box bearing groove 142 is provided with the supporting roller 146, so that the friction force between the packing box 200 and the bottom of the packing box bearing groove 142 is reduced, and the second surrounding baffle 144 is prevented from scratching the bottom surface of the packing box when the packing box is clamped and driven to move.

The stop positioning mechanism 16 includes a stop module 161 and a side push positioning module 162. The second enclosure plate 144 is slidably arranged on the bottom plate 141 through the first sliding block 147, one end of the first sliding block 147 extends to the side, the opening and clamping module 17 is arranged corresponding to the first sliding block 147, and the first sliding block 147 is driven to slide, so that the package box holding groove 142 is switched between the clamping state and the opening state.

An operator places a packaging box 200 to be coated into a carrier 14 at one end of a carrier circulating conveyor line 1, and then detects the placing posture of the packaging box through a detection camera 15; then the first conveying line 11 is conveyed to the working position of the first conveying mechanism 6, and the first conveying mechanism 6 takes out the carrier 14 after the carrier 14 is positioned by the stop positioning mechanism 16; then the carrier 14 continues to move to the working position of the second carrying mechanism 7, and the second carrying mechanism 7 returns the coated packaging box 200 to the carrier 14; then, returning to the product loading and unloading station through the carrier lifting mechanism 13 at the tail end, the second conveying line 12 and the carrier lifting mechanism 13 at the head end, and taking out the coated product from the carrier 14 by an operator and putting the coated product into the product to be coated; or the carrier 14 carrying the coated product moves to the end of the first conveying line 11, an operator takes the product out of the carrier 14, and then the empty carrier 14 returns to the product loading and unloading station through the carrier lifting mechanism 13 at the end, the second conveying line 12 and the carrier lifting mechanism 13 at the head end, so that the recycling of the carrier 14 is realized.

The film paper feeding unit 2 comprises a film paper bin 21 carrying a plurality of layers of film paper units, a first supporting slideway 22 butted with the film paper bin 21, a material pulling module 23 for pulling the film paper units in the film paper bin 21 out of the first supporting slideway 22, and a paper separating module 24 for preventing the film paper from being stuck when the film paper carrying mechanism 5 absorbs the film paper.

The film paper unit includes a film paper carrier plate 25 and a plurality of film papers 300 stacked on the film paper carrier plate 25. In this embodiment, 30 sheets of film paper are carried on each film paper carrier plate 25. The upper surface of the film paper carrier plate 25 is provided with a plurality of first limit baffles 251 for limiting the position of the film paper, and the lower surface is provided with a plurality of sliding rollers 252 matched with the first supporting slideway 22.

The film paper bin 21 comprises a first motor 211, a bin bracket 212 driven by the first motor 211 to move up and down, and a plurality of layers of storage cavities 213 arranged on the bin bracket 212 at intervals up and down, wherein one film paper unit is placed in each layer of storage cavity 213. In this embodiment, the bin bracket 212 is provided with five storage cavities 213, which can carry five film paper units.

The accommodating cavity 213 has a space structure with three surrounding walls and one surface being open, a second supporting slideway 2131 matched and butted with the first supporting slideway 22 is arranged at the bottom of the accommodating cavity 213, the opening of the accommodating cavity 213 is open towards the first supporting slideway 22, and second limiting baffles 2132 are arranged on the other surrounding wall sides of the accommodating cavity, so that the position of the film paper carrier plate 25 is limited.

The stock bin bracket 212 is also provided with a plurality of first sensors 214 for detecting whether the film paper is on the film paper carrier plate 25 and a plurality of second sensors 215 for detecting whether the film paper carrier plate 25 is placed in each storage cavity 213.

The material pulling module 23 comprises a first cylinder 231 and a material pulling claw 232 driven by the first cylinder 231 to horizontally move, and a clamping groove 253 with an outward opening and into which the material pulling claw 232 stretches is formed in one side edge of the film paper carrier plate 25. The pulling claw 232 is driven by the first cylinder 231 to extend into the accommodating cavity 213 of the film paper bin 21 and is opposite to the lower side of the clamping groove 253, then the first motor 211 drives the bin bracket 212 to descend, so that the pulling claw 232 extends into the clamping groove 253 to hook the film paper carrier plate 25, the first cylinder 231 is retracted to pull the film paper carrier plate 25 out of the accommodating cavity 213 and slide onto the first support slideway 22 from the second support slideway 2131, and pulling is realized.

The paper separating module 24 comprises a second motor 241 and a material separating deflector 242 which is driven by the second motor 241 to horizontally move at a set height above the first supporting slideway 22. When the film paper carrying mechanism 5 adsorbs the uppermost film paper and then rises to the set height, at this time, the material distributing deflector 242 is in contact with the lower surface of the film paper on the film paper carrying mechanism 5 or has a certain gap, and then sweeps once along the extending direction of the film paper, so as to sweep down the lower film paper attached to the lower surface of the film paper to realize separation, and achieve the effect of preventing sticking materials.

The film paper handling mechanism 5 adsorbs the film paper 300 from the film paper feeding unit 2 and places the film paper in the film paper pre-bending unit 3, and adsorbs the film paper after pre-bending and tearing off the release paper from the film paper pre-bending unit 3 and places the film paper in the film paper wrapping unit 4. Therefore, the film paper carrying mechanism 5 includes a third motor 51, a first support plate 52 driven by the third motor 51 to horizontally move, and a first carrying module 53 and a second carrying module 54 provided on the first support plate 52; wherein, the first carrying module 53 is used for adsorbing the film paper 300 from the film paper feeding unit 2 and placing the film paper 300 into the film paper pre-bending unit 3; the second carrying module 54 is used for absorbing the film paper which is pre-folded and torn off from the film paper pre-folding unit 3 and placing the film paper into the film paper wrapping unit 4.

The first carrying module 53 includes a fourth motor 531 fixed on the first support plate 52, a second support plate 532 driven by the fourth motor 531 to move up and down, and a plurality of first adsorbing assemblies 533 disposed on the second support plate 532.

The second carrying module 54 includes a fifth motor 541 fixed to the first support plate 52, a third support plate 542 driven by the fifth motor 541 to move up and down, and a plurality of second adsorption assemblies 543 disposed on the third support plate 542.

The paper pre-bending unit 3 comprises a first adsorption supporting platform 31, a plurality of film tearing modules 32 surrounding the side of the first adsorption supporting platform 31, a first film paper positioning module 33 which is embedded in the first adsorption supporting platform 31 and used for accurately positioning the position of the film paper, a plurality of bending bottom die modules 34 which are embedded in the first adsorption supporting platform 31, and a bending upper die module 35 which is matched with the bending bottom die modules 34 and used for realizing the pre-bending of the film paper.

The first adsorption supporting platform 31 is provided with a plurality of suckers 311, and the distribution of the suckers 311 is matched and arranged according to the shape of the film 300.

In this embodiment, the film sheet 300 includes a bottom surface region 301, a front side surface region 302 and a rear side surface region 303 adjacent to two long side sides of the bottom surface region 301, a left side surface region 304 and a right side surface region 305 adjacent to two short side sides of the bottom surface region 301, and an upper side surface region 306 adjacent to an extending edge of the rear side surface region 303; the extending edge of the upper side surface area 306 is provided with a lifting lug 307, the left side edge and the right side edge of the rear side surface area 303 are provided with lap joint parts 308, the top edge of the front side surface area 302 is provided with a first pasting part 309, the top edges of the left side surface area 304 and the right side surface area 305 are provided with a second pasting part 310, the first pasting part 309 and the second pasting part 310 are provided with release papers, and the film tearing module 32 is used for tearing off the release papers at the three pasting parts.

In order to enable the film 300 to be wrapped with the package 200 better in the film wrapping unit 4, the film 300 is pre-folded at the crease line position set on the film 300 in the pre-folding unit 3 so as to be attached to the surface of the package better. The positions where the pre-bending is required include a first dividing line 320 between the first attaching portion 309 and the front side surface area 302, a second dividing line 330 between the front side surface area 302 and the bottom surface area 301, a third dividing line 340 between the bottom surface area 301 and the rear side surface area 303, a fourth dividing line 350 between the rear side surface area 303 and the lifting lug 307, a fifth dividing line 360 between the rear side surface area 303 and the left side overlapping portion 308, and a sixth dividing line 370 between the rear side surface area 303 and the right side overlapping portion 308. The bending bottom die set 34 and the bending upper die set 35 are arranged corresponding to the six dividing lines, and are used for pre-bending the film paper at the six dividing lines and forming folds on the film paper.

The first film paper positioning module 33 is mainly used for accurately positioning the contour position of the film paper, on one hand, the film tearing module 32 can accurately pinch the film tearing handle of the release paper, and the film tearing action is ensured to be reliable and effective; on the other hand, reliable guarantee is provided for the accurate pre-bending of the film paper set position, and bending position accuracy is guaranteed.

The first film paper positioning module 33 includes a first positioning member 331 for positioning the left and right sides of the front side area 302, a second positioning member 332 for positioning the left and right sides of the rear side area 303, a third positioning member 333 for positioning the left positions of the second dividing line 330 and the third dividing line 340, and a fourth positioning member 334 for positioning the right positions of the second dividing line 330 and the third dividing line 340.

The first positioning component 331 and the second positioning component 332 have the same structure and each include a second cylinder 3321 and a first limiting clamp plate 3322 driven by the second cylinder 3321 to close to each other or open to each other.

The third positioning assembly 333 and the fourth positioning assembly 334 have the same structure and each include a third air cylinder 3331, a fourth support plate 3332 driven by the third air cylinder 3331 to move back and forth, a second limiting clamp plate 3333 and a third limiting clamp plate 3334 which are arranged on the fourth support plate 3332 in a sliding manner perpendicular to the moving direction of the fourth support plate 3332, and a second elastic member 3335 which mutually expands the second limiting clamp plate 3333 and the third limiting clamp plate 3334 to keep an opened state. The first limiting clamp plate 3322, the second limiting clamp plate 3333 and the third limiting clamp plate 3334 all penetrate through the first adsorption supporting platform 31 from bottom to top; the first adsorption supporting platform 31 is provided with a first guiding chute 313 for adjusting the interval between the second limiting clamp plate 3333 and the third limiting clamp plate 3334, and the second limiting clamp plate 3333 and the third limiting clamp plate 3334 upwards penetrate through the first guiding chute 313. The third positioning assembly 333 and the third cylinder 3331 in the fourth positioning assembly 334 drive the second limiting clamp plate 3333 and the third limiting clamp plate 3334 to move left and right, so as to limit the positions of the left side and the right side of the second limiting line 330 and the third limiting line 340, and then the second limiting clamp plate 3333 and the third limiting clamp plate 3334 are mutually close to each other under the constraint action of the first guide chute 313 so as to keep limiting the front and rear positions of the bottom surface area 301, thereby realizing accurate positioning of the front and rear positions of the second limiting line 330 and the third limiting line 340.

In the present embodiment, the position limiting structures of the second dividing line 330 and the third dividing line 340 are combined, the left side limiting mechanisms of the two dividing lines are designed together, and the right side limiting mechanisms of the two dividing lines are designed together. In other embodiments, the limiting structures of the two dividing lines can be designed separately; the combined design of the embodiment can save the number of cylinders.

The bending bottom die set 34 comprises a bending base 341, and the position of the bending base 341 can be adjusted and is arranged on the first adsorption supporting platform 31; the position of the folding base 341 can be finely adjusted according to the change of the position of the bending line. When the bending angle and the bending depth of the film paper are changed, the corresponding bending base 341 can be replaced quickly, and quick die change is realized.

The upper bending die set 35 is integrally provided on the second transfer die set 54 in the film transfer mechanism 5. The bending upper die set 35 includes a fourth cylinder 351 fixed to a third support plate 542, and a bending press head 352 driven by the fourth cylinder 351 to move up and down. The bending base 341 is provided with a bending line forming groove 342, and the bending press head 352 presses the film 300 into the bending line forming groove 342, and bends a crease on the surface of the film 300.

In order to ensure that the bending upper die set 35 arranged on the second carrying die set 54 is accurately matched with the bending bottom die set 34 to perform film paper pre-bending, a plurality of positioning columns 312 are further arranged on the first adsorption supporting platform 31, and positioning holes 544 matched and positioned with the positioning columns 312 are formed in the corresponding second carrying die set 54.

In order to ensure that the film paper is not torn or deformed during the pre-bending, all the bending upper die sets 35 cannot be started at the same time, and the principle from far to near is followed when bending, namely, the film paper is firstly bent to a more outer boundary and then is further bent to an inner boundary. In this embodiment, the upper bending die sets 35 corresponding to the first boundary 320, the fourth boundary 350, the fifth boundary 360 and the sixth boundary 370 are started simultaneously to perform the first bending; then the bending press heads 352 in the four bending upper die modules 35 are reset upwards; then, the second dividing line 330 and the bending upper die set 35 corresponding to the third dividing line 340 are started at the same time to perform the second bending.

In order to ensure that the position of the film paper does not occur during the first bending process, and the accuracy of the second bending process is affected, the second carrying module 54 is further provided with a film pressing module 36 for pressing the left side surface area 304 and the right side surface area 305 of the film paper. The film pressing module 36 includes an eighth cylinder 361 and a pressing block 362 driven by the eighth cylinder 361 to move up and down.

The film tearing module 32 comprises a fifth air cylinder 321, a fifth supporting plate 322 which is driven by the fifth air cylinder 321 to be close to or far away from the edge of the film paper, a sixth air cylinder 323 fixed on the fifth supporting plate 322, a second sliding block 324 which is driven by the sixth air cylinder 323 to horizontally move along the film tearing direction, a swing mounting plate 325 which is rotatably arranged on the second sliding block 324 at one end, a seventh air cylinder 326 and a first guide roller 327 which are fixed at the other end of the swing mounting plate 325, a first clamping jaw 328 which is driven by the seventh air cylinder 326 to open or clamp, and a guide plate 329 which is fixed on the fifth supporting plate 322 and is matched with the first guide roller 327 to drive the swing mounting plate 325 to swing so as to realize the height change of the first clamping jaw 328, wherein the guide plate 329 is provided with a second guide chute 3291, the first guide roller 327 extends into the second guide chute 3291, and the swing mounting plate 325 is driven to swing around a rotating shaft which is rotatably connected with the second sliding block 324 under the constraint of the second guide chute 3291 so as to realize the height change of the first clamping jaw 328, so as to complete the film tearing action.

In order to ensure that release paper on the film paper is effectively torn off, the film paper can be reliably wrapped on the surface of the packaging box, and the film tearing module 32 further comprises a third sensor 3210 for detecting whether the release paper on the film paper is torn off or not.

In order to ensure the operation site environment, the torn release paper is prevented from adhering to the film paper to affect the subsequent packaging, an air suction pipe 3211 for sucking away the release paper on the first clamping jaw 328 is further arranged in the film tearing assembly 32, and the air suction pipe 3211 is communicated with a dust suction device.

The working principle of the paper pre-bending unit 3 is as follows: the first carrying module 53 adsorbs the film paper 300 to be placed on the first adsorption supporting platform 31; the first film paper positioning module 33 positions the outline of the film paper 300, and then the sucking disc 311 adsorbs and fixes the film paper; the three film tearing modules 32 act simultaneously to tear off release paper on the film 300 and then suck the release paper through the air suction pipe 3211; the second carrying module 54 moves to above the first adsorption supporting platform 31 and stays at a set height; the pressing block 362 in the film pressing module 36 descends to press the film 300; the bending upper die set 35 corresponding to the first boundary 320, the fourth boundary 350, the fifth boundary 360 and the sixth boundary 370 is started at the same time to complete the first bending, and the bending press heads 352 in the bending upper die set 35 corresponding to the four boundaries are reset upwards; the partial sucking disc 311 on the first sucking supporting platform 31 turns off the vacuum, and the sucking action on the left side surface area 304 and the right side surface area 305 of the film paper is reserved; then the second dividing line 330 and the corresponding bending upper die set 35 at the third dividing line 340 are started simultaneously to complete the second bending, and the bending pressure heads 352 in the bending upper die set 35 corresponding to the two dividing lines are reset upwards; the film pressing module 36 resets, and all the suckers 311 close the vacuum; the second adsorption component 543 in the second conveying module 54 descends to adsorb the pre-folded film paper, and conveys the film paper to the film paper wrapping unit 4.

The film wrapping unit 4 comprises a first wrapping station and a second wrapping station which are sequentially arranged along the conveying direction of the carrier circulating conveying line 1, a second adsorption supporting platform 41 which is arranged at the first wrapping station and has a lifting function, a front supporting plate 42 and a rear supporting plate 43 which are arranged at the front side and the rear side of the second adsorption supporting platform 41 and are used for bearing film paper, a front pushing module 44 which is arranged below the front supporting plate 42 and pushes a first pasting part 309 on a front side surface area 302 of the film paper to the top surface of the packaging box 200, a rear pushing module 45 which is arranged below the rear supporting plate 43 and pushes a side surface area 306 of the film paper to the top surface of the packaging box 200 and is pasted with the first pasting part 309, a front side rolling module 46 which is arranged below the front pushing module 44 and wraps the front side surface area 302 of the film paper on the front side surface of the packaging box 200 a rear rolling die set 47 which is arranged below the rear top rolling die set 45 and wraps the film rear side area 303 on the rear side surface of the packing box 200, a pair of corner side rolling die sets 48 which are arranged at the rear side of the second adsorption supporting platform 41 and lay left and right overlapping parts 308 of the film rear side area 303 on the left and right side surfaces of the packing box 200, left and right rolling die sets 49 which are arranged at the left and right sides of the second adsorption supporting platform 41 and lay left and right side areas 304 and 305 of the film on the left and right side surfaces of the packing box 200 respectively, a second film paper positioning die set 410 which positions the outline of the film on the second adsorption supporting platform 41, a transfer die set 420 which transfers the packing box assembly (i.e. the packing box wrapped with the film) from the first wrapping station to the second wrapping station, a lifting supporting platform 430 arranged at the second wrapping station, the lifting support platform 430 is provided with a lifting lug back positioning module 440 which is arranged at the joint of the film paper lifting lug 307 and the upper side surface area 306 in a side pressing manner, an upper top rolling module 450 which is arranged at the top of the packaging box assembly and is used for carrying out secondary rolling on the film paper upper side surface area 306, and a lifting lug bending rolling module 460 which is arranged at the front side of the lifting support platform 430 and is matched with the lifting lug back positioning module 440 to carry out outward turning bending on the lifting lug 307.

The second suction supporting platform 41 includes a sixth motor 411, a suction supporting plate 412 driven to move up and down by the sixth motor 411, and a supporting frame 413 fixed to the left and right sides of the suction supporting plate 412 for supporting the left and right side areas 304 and 305 of the film paper. The supporting frame 413 is of a hollow rectangular frame structure, an avoidance gap 414 is formed in the supporting frame 413, and the middle space of the supporting frame is used for avoiding movement of the left and right rolling die assemblies 49 together with the avoidance gap 414. The adsorption support plate 412 is similar to the film paper bottom surface area 301 in size, and is mainly used for adsorbing the film paper bottom surface area 301 and simultaneously carrying the package box 200.

A pair of third limit baffles 421 for limiting the left and right sides of the film front side area 302 are provided on the front support plate 42; a pair of fourth stopper plates 431 for stopping the left and right sides of the film paper rear side surface region 303 are provided on the rear support plate 43.

The front top pressing module 44 includes a ninth cylinder 441 fixed to the lower surface of the front support plate 42, and a first pressing plate 442 driven by the ninth cylinder 441 to move forward and backward.

The back-top rolling module 45 includes a seventh motor 451 fixed to the lower surface of the back support plate 43 and a first rolling wheel 452 driven by the seventh motor 451 to move forward and backward. Because the upper side surface area 306 of the film paper needs to be rolled in place in multiple steps during pushing and rolling, the position of the first rolling wheel 452 can be controlled more precisely by using the driving of the seventh motor 451, so as to realize perfect fit of the upper side surface area 306 in cooperation with the left and right rolling die sets 49 and the front top pushing and pressing die set 44.

The front side rolling die set 46 has the same structure as the rear side rolling die set 47, and includes a tenth cylinder 461 and a second rolling wheel 462 driven by the tenth cylinder 461 to move forward and backward.

The corner side rolling die set 48 includes an eleventh cylinder 481, a sixth support plate 482 driven by the eleventh cylinder 481 to move left and right, a twelfth cylinder 483 fixed to the sixth support plate 482, and a third rolling wheel 484 driven by the twelfth cylinder 483 to move forward and backward. The eleventh cylinder 481 drives the third rolling wheel 484 to move to the position of contact with the left side surface or the right side surface, presses the left and right two overlapping portions 308 of the film paper rear side surface region 303 against the left side surface and the right side surface, respectively, and then the twelfth cylinder 483 drives the third rolling wheel 484 to move forward, thereby completely contacting the overlapping portions 308 with the two side surfaces.

The left and right rolling die set 49 includes two first sub-modules 491 and a lifting drive assembly 492 which are disposed opposite to each other in the left and right direction, the first sub-modules 491 including a thirteenth cylinder 4911, a seventh support plate 4912 which is driven by the thirteenth cylinder 4911 to move in the left and right direction, an eighth support plate 4913 which is disposed on the seventh support plate 4912 in a sliding manner in the up and down direction, a fourth rolling wheel 4914 and a fourteenth cylinder 4915 which are mounted on the eighth support plate 4913, and a second pressing plate 4916 which is driven by the fourteenth cylinder 4915 to move horizontally above the fourth rolling wheel 4914.

The lifting driving assembly 492 includes an eighth motor 4921 and a lifting plate 4922 driven by the eighth motor 4921 to move up and down, wherein a supporting block 49131 is extended and arranged at one side of the eighth supporting plate 4913, and the left and right sides of the lifting plate 4922 extend to the lower parts of the supporting blocks 49131 in the two first sub-modules 491 and lift the supporting blocks 49131. The eighth support plate 4913 is driven to move up and down by the lifting movement of the lifting plate 4922. The lifter plate 4922 is provided with a pair of left and right extending slide grooves 49221, and the support block 49131 is provided with a pin 49132 extending into the slide groove 49221. When the eighth support plate 4913 moves horizontally in the left-right direction, the eighth support plate 4913 can move horizontally in the left-right direction relative to the lifter plate 4922 due to the presence of the runner 49221.

The second film positioning module 410 includes four second sub-modules 4101, where the four second sub-modules 4101 are disposed in pairs to position the front and rear positions of the left side surface area 304 and the right side surface area 305 of the film, and to position the left and right positions of the bottom surface area 301 of the film. The second sub-module 4101 includes a fifteenth cylinder 41011 and a fifth limit stop 41012 driven by the fifteenth cylinder 41011 to move left and right.

The transfer module 420 includes a ninth motor 4201 and two first clamp modules 4202 driven by the ninth motor 4201 to move left and right. The ninth motor 4201 and the two first clamping modules 4202 are driven by a synchronous belt 4203, the two first clamping modules 4202 are respectively fixed on the two synchronous belts 4203, the first clamping modules 4202 are moved left and right by the transmission of the synchronous belts 4203, and an avoidance space is formed between the two synchronous belts 4203, so that the second adsorption support platform 41 and the left and right rolling die sets 49 can move.

The second film positioning module 410 is disposed on the same working height plane as the front support plate 42 and the rear support plate 43. The corner side rolling module 48 is disposed in a height space below the second film positioning module 410; the left and right rolling modules 49 move up and down and left and right in the space below the second film positioning module 410. The transfer module 420 is located between the highest position and the lowest position of the lifting driving assembly 492 and below the working height space of the left and right rolling die assemblies 49; when the transfer module 420 transfers the packing box assembly, the lifting driving assembly 492 drives the first sub-module 491 to be at a lower position, so as to avoid the left-right movement of the first clamping module 4202.

The first clamping module 4202 includes a ninth support plate 42021 driven by the ninth motor 4201 to move left and right, a sixteenth cylinder 42022 fixed to the ninth support plate 42021, a tenth support plate 42023 driven by the sixteenth cylinder 42022 to move back and forth, first front and rear clamping plates 42024 and seventeenth cylinder 42025 fixed to the tenth support plate 42023, and a second clamping jaw 42026 driven by the seventeenth cylinder 42025 to clamp and open left and right. The first front and rear side clamps 42024 of the two first clamping modules 4202 cooperate to clamp the front and rear side surfaces of the package assembly, and then the two pairs of second clamping jaws 42026 clamp the left and right side surfaces of the package assembly to achieve reliable clamping of the package assembly.

The elevating support platform 430 includes a tenth motor 4301 and a lifting plate 4302 driven to move up and down by the tenth motor 4301.

The lifting lug back positioning module 440 includes an eighteenth air cylinder 4401, a twenty-fifth air cylinder 4402 driven by the eighteenth air cylinder 4401 to move up and down, and a third pressing plate 4403 driven by the twenty-fifth air cylinder 4402 to move back and forth.

The top rolling module 450 includes an eleventh motor 4501, a nineteenth cylinder 4502 driven by the eleventh motor 4501 to move forward and backward, and a fifth rolling wheel 4503 driven by the nineteenth cylinder 4502 to move up and down.

The handle bending and rolling module 460 comprises a twentieth cylinder 4601, a twentieth cylinder 4602 driven by the twentieth cylinder 4601 to move up and down, and a sixth rolling wheel 4603 driven by the twentieth cylinder 4602 to move back and forth.

The film paper wrapping unit 4 has the following working principle: the second adsorption supporting platform 41 is positioned at a high position and forms a supporting plane of the film paper together with the front supporting plate 42 and the rear supporting plate 43; the second carrying module 54 carries the film 300 onto the supporting plane; the third limit baffle 421, the fourth limit baffle 431 and the second film positioning module 410 position the film 300; the adsorption supporting plate 412 on the second adsorption supporting platform 41 adsorbs the bottom surface area 301 of the film paper, and keeps the position of the film paper fixed; the first carrying mechanism 6 carries the package box 200 to be packaged to the first film coating station and places the package box on the adsorption supporting plate 412; the sixth motor 411 drives the suction support plate 412 to descend to the height position of the front roll die set 46 and the rear roll die set 47; then the second rolling wheel 462 in the front rolling module 46 and the rear rolling module 47 simultaneously extend out, the adsorption supporting plate 412 bears the film paper and the packaging box and descends continuously for a certain height, the second rolling wheel 462 rolls and lays the film paper on the surface of the packaging box from bottom to top on the front and rear side surfaces of the packaging box, and at the moment, the second rolling wheel 462 stays at a position close to the top of the packaging box; then the third rolling wheel 484 in the two corner side rolling modules 48 extends out to press the left and right overlapping parts 308 of the film paper rear side area 303 on the left side surface and the right side surface respectively; the two fourth rolling wheels 4914 in the left and right rolling die set 49 extend and move upwards simultaneously, the left side surface area 304 and the right side surface area 305 of the film paper are respectively laid on the left and right side surfaces of the packaging box 200, when the third rolling wheel 484 rises to a set height, the second pressing plate 4916 is pushed out horizontally, and the second pasting part 310 is pushed and bent and stays at the top edge of the packaging box 200 along the corner circular arc of the packaging box; the first pressing plate 442 in the front pushing module 44 horizontally extends out to push the first adhesive part 309 on the film front side area 302 onto the top surface of the package box 200, at this time, adhesive parts are uniformly distributed on three side edges of the top surface of the package box 200, and the adhesive surface of the adhesive part faces upwards; the first rolling wheel 452 in the rear top rolling module 45 stretches out to push the upper side surface area 306 of the film paper to the top surface of the packaging box 200, in the process, the first rolling wheel 452 stretches out to a first position firstly, then the second pressing plate 4916 is withdrawn, the first rolling wheel 452 continues to stretch out to a second position, then the first pressing plate 442 is withdrawn, and finally the first rolling wheel 452 continues to stretch out to the right position, and the upper side surface area 306 of the film paper is adhered to the first adhering part 309 and the second adhering part 310; then the second adsorption supporting platform 41 descends to a low position, the first clamping module 4202 in the transfer module 420 clamps the package box assembly, the second adsorption supporting platform 41 continues to descend below the first clamping module 4202, and the first clamping module 4202 clamps the package box assembly to move to the second film wrapping station; the lifting plate 4302 in the lifting support platform 430 supports the bottom of the packaging box assembly upwards, and the first clamping module 4202 is loosened and retracted to the first coating station; the lift plate 4302 supports the package assembly for upward movement to envelope height; a fifth rolling wheel 4503 in the top rolling module 450 performs secondary rolling on the upper side surface region 306 of the film paper; then the third pressing plate 4403 in the lifting lug back positioning module 440 horizontally extends out and is pressed at the root of the lifting lug 307, and then the sixth rolling wheel 4603 in the lifting lug bending rolling module 460 rolls the lifting lug 307 backwards to complete the lifting lug bending operation; the second handling means 7 then handle the packaged product from the second film wrapping station back to the carrier 14 in the carrier circulation line 1.

The first conveying mechanism 6 and the second conveying mechanism 7 have the same structure and each comprise a twelfth motor 61, an eleventh supporting plate 62 driven by the twelfth motor 61 to move back and forth between the first coating station and the carrier circulating conveyor line 1 or between the second coating station and the carrier circulating conveyor line 1, a thirteenth motor 63 fixed on the eleventh supporting plate 62, a twelfth supporting plate 64 driven by the thirteenth motor 63 to move up and down, and a second clamping module 65 arranged on the twelfth supporting plate 64.

The second clamping module 65 includes a twenty-second cylinder 651 fixed to the twelfth support plate 64, a suction plate 652 driven by the twenty-second cylinder 651 to move up and down and to suck the top surface of the packing box, a pair of thirteenth support plates 653 slidably disposed on the upper surface of the twelfth support plate 64 in a left-right direction, a twenty-third cylinder 654 fixed to the twelfth support plate 64 and driving the thirteenth support plates 653 to move in a left-right direction, a pair of second front-rear side clamping plates 655 slidably disposed under the twelfth support plate 64 in a front-rear direction, a pair of fourteenth support plates 656 slidably disposed under the twelfth support plate 64 in a left-right direction, a twenty-fourth cylinder 657 fixed to the fourteenth support plates 656, and a third clamping jaw 658 driven by the twenty-fourth cylinder 657 to perform swing clamping, the fourteenth support plates 656 and the thirteenth support plates 653 being fixedly connected together by a connecting plate 659, a third guide chute 6531 being disposed on the thirteenth support plates 653, and a second guide roller 6551 being disposed on the second front-rear side clamping plates 655 to perform the front-rear sliding in cooperation with the third guide chute 6531.

The second clamping module 65 achieves the front-back movement of the second front-back side clamping plate 655 through one power source, and meanwhile achieves the left-right movement of the third clamping jaw 658, so that the power source and the cost are saved. The packing box adopts the modes of top adsorption, front and back side clamping and left and right side clamping to realize carrying and transferring, so that the stability and reliability of the clamping of the packing box are greatly improved, and the risk of product sliding is reduced.

The embodiment also provides a film paper automatic wrapping method of the box body product, which comprises the following steps:

s1, placing a packaging box 200 to be packaged on a carrier circulating conveying line 1 according to a set direction;

s2, outputting a disc of stacked film paper at a film paper feeding station by a film paper feeding unit 2;

s3, a first carrying module 53 in the film paper carrying mechanism 5 adsorbs a piece of film paper 300 at the film paper feeding station and places the film paper 300 on a first adsorption supporting platform 31 in the pre-bending unit 3, and the first adsorption supporting platform 31 adsorbs and fixes the film paper 300;

s4, the film tearing module 32 in the pre-bending unit 3 tears off the release paper at the set position of the film paper 300;

s5, while the step S4 is executed, the first carrying module 53 returns to the film paper feeding station, and meanwhile, the second carrying module 54 in the film paper carrying mechanism 5 moves to the position above the first adsorption supporting platform 31, and the bending bottom die module 34 and the bending upper die module 35 cooperate to perform a pre-bending operation on the set position of the film paper 300;

S6, a second carrying module 54 carries the pre-folded film paper from the first adsorption supporting platform 31 to the first coating station and places the film paper on the second adsorption supporting platform 41, the first carrying mechanism 6 carries the packaging box 200 to be packaged from the carrier circulating conveyor line 1 to the first coating station, and the film paper wrapping unit 4 completes wrapping operation of the film paper at the first coating station;

s7, moving the packaging box wrapped with the film paper to the second film wrapping station to finish bending of the lifting lug and secondary rolling of the top surface film paper, and improving the adhesive strength of the top surface film paper to obtain a packaging box assembly;

s8, the second carrying mechanism 7 carries the packaging box assembly from the second film wrapping station to the carrier circulating conveyor line 1, and the packaging box assembly flows to the subsequent station to complete automatic wrapping of the surface film paper of the packaging box.

It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims

1. Automatic film paper parcel production line of box body product, its characterized in that: the packaging box packaging machine comprises a carrier circulating conveying line, a film paper feeding unit, a film paper pre-bending unit and a film paper wrapping unit which are sequentially arranged along the carrier circulating conveying line, a film paper conveying mechanism for sequentially conveying film paper from the film paper feeding unit to the film paper pre-bending unit and the film paper wrapping unit, a first conveying mechanism for taking out a packaging box from the carrier circulating conveying line and then placing the packaging box into the film paper wrapping unit, and a second conveying mechanism for taking out the packaging box wrapped with the film paper from the film paper wrapping unit and then placing the packaging box into the carrier circulating conveying line; the film paper pre-bending unit comprises a first adsorption supporting platform, a plurality of film tearing modules surrounding the side of the first adsorption supporting platform, a first film paper positioning module, a plurality of bending bottom die modules and a bending upper die module, wherein the first film paper positioning module is embedded in the first adsorption supporting platform and used for accurately positioning the position of film paper;

The film paper comprises a bottom surface area, a front side surface area and a rear side surface area which are adjacent to two opposite long side sides of the bottom surface area, a left side surface area and a right side surface area which are adjacent to two opposite short side sides of the bottom surface area, and an upper side surface area which is adjacent to the top edge of the rear side surface area; lifting lugs are arranged at the top edges of the upper side surface area, lap joint parts are arranged at the left side edge and the right side edge of the rear side surface area, a first pasting part is arranged at the top edge of the front side surface area, second pasting parts are arranged at the top edges of the left side surface area and the right side surface area, release paper is arranged at the first pasting part and the second pasting part area, and the film tearing module is used for tearing off the release paper at the pasting parts;

the position on the film paper, which is required to be pre-bent, comprises a first dividing line between the first pasting part and the front side surface area, a second dividing line between the front side surface area and the bottom surface area, a third dividing line between the bottom surface area and the rear side surface area, a fourth dividing line between the rear side surface area and the lifting lug, a fifth dividing line between the rear side surface area and the left side lap joint part, and a sixth dividing line between the rear side surface area and the right side lap joint part; the bending bottom die module and the bending upper die module are used for pre-bending the film paper at the six boundary lines;

The first film paper positioning module comprises a first positioning component for positioning the left side and the right side of a film paper front side area, a second positioning component for positioning the left side and the right side of a film paper rear side area, a third positioning component for positioning the left side positions of a second dividing line and a third dividing line, and a fourth positioning component for positioning the right side positions of the second dividing line and the third dividing line;

the third positioning assembly and the fourth positioning assembly comprise a third air cylinder, a fourth supporting plate driven by the third air cylinder to move forwards and backwards, a second limiting clamping plate and a third limiting clamping plate which are arranged on the fourth supporting plate in a sliding manner relative to the moving direction of the fourth supporting plate, and a second elastic piece which enables the second limiting clamping plate and the third limiting clamping plate to mutually prop open and keep an open state; the first limiting clamp plate, the second limiting clamp plate and the third limiting clamp plate all penetrate through the first adsorption supporting platform from bottom to top; the first adsorption supporting platform is provided with a first guide chute for adjusting the interval between the second limiting clamp plate and the third limiting clamp plate, and the second limiting clamp plate and the third limiting clamp plate upwards penetrate through the first guide chute;

The film paper conveying mechanism comprises a third motor, a first supporting plate driven by the third motor to horizontally move, and a first conveying module and a second conveying module which are arranged on the first supporting plate; the bending upper die module is integrally arranged on a second carrying module in the film paper carrying mechanism; the bending upper die set comprises a fourth cylinder and a bending press head driven by the fourth cylinder to move up and down; the first adsorption supporting platform is provided with a plurality of positioning columns, and the second carrying module is provided with positioning holes matched with the positioning columns for positioning.

2. The automated film wrapping line for box products according to claim 1, wherein: the carrier circulation conveying line comprises a first conveying line and a second conveying line which are arranged in parallel up and down, a carrier lifting mechanism which is arranged at two ends of the first conveying line and used for realizing butt joint of the first conveying line and the second conveying line, a carrier which is conveyed on the first conveying line and the second conveying line, and a detection camera which is arranged above the feeding end of the first conveying line and used for detecting whether a packing box is correctly placed in the carrier.

3. The automated film wrapping line for box products according to claim 2, wherein: the carrier comprises a bottom plate and a packing box bearing groove arranged on the bottom plate, wherein the packing box bearing groove is formed by surrounding a pair of first surrounding baffles and a pair of second surrounding baffles, the pair of second surrounding baffles are arranged on the bottom plate in a sliding manner and are connected with the corresponding first surrounding baffles through a pair of first elastic pieces respectively to keep a clamping state; the first conveying line is correspondingly provided with a plurality of stopping and positioning mechanisms for stopping and positioning the carrier and an opening and clamping module for driving the carrier to be in an open state.

4. The automated film wrapping line for box products according to claim 1, wherein: the film paper feeding unit comprises a film paper bin carrying a plurality of layers of film paper units, a first supporting slideway in butt joint with the film paper bin, a material pulling module for pulling the film paper units in the film paper bin out of the first supporting slideway, and a paper separating module for preventing the film paper conveying mechanism from sticking materials when absorbing the film paper; the membrane paper unit comprises a membrane paper carrier plate and a plurality of membrane papers stacked on the membrane paper carrier plate; the film paper bin comprises a first motor, a bin bracket driven by the first motor to move up and down, and a plurality of layers of storage cavities arranged on the bin bracket at intervals up and down, wherein the bottom of the storage cavity is provided with a second support slideway matched and butted with the first support slideway; each layer of storage cavity is internally provided with one film paper unit; the material pulling module comprises a first air cylinder and a material pulling claw driven by the first air cylinder to horizontally move, and a clamping groove with an outward opening and used for the material pulling claw to extend in is formed in one side edge of the film paper carrier plate.

5. The automated film wrapping line for box products according to claim 1, wherein: the first carrying module is used for adsorbing the film paper from the film paper feeding unit and placing the film paper into the film paper pre-bending unit, and comprises a fourth motor fixed on the first supporting plate, a second supporting plate driven by the fourth motor to move up and down, and a plurality of first adsorption assemblies arranged on the second supporting plate;

6. The automated film wrapping line for box products according to claim 1, wherein: the film tearing module comprises a fifth air cylinder, a fifth supporting plate, a sixth air cylinder, a second sliding block, a swing mounting plate, a seventh air cylinder, a first guide roller, a first clamping jaw and a guide plate, wherein the fifth supporting plate is driven by the fifth air cylinder to be close to or far away from the edge of film paper, the sixth air cylinder is fixed on the fifth supporting plate, the second sliding block is driven by the sixth air cylinder to horizontally move along the film tearing direction, one end of the second sliding block is rotatably arranged on the swing mounting plate, the seventh air cylinder is fixed on the other end of the swing mounting plate, the first clamping jaw is driven by the seventh air cylinder to perform opening or clamping actions, the guide plate is fixed on the fifth supporting plate and is matched with the first guide roller to drive the swing mounting plate to swing so as to achieve the height change of the first clamping jaw, and a second guide chute is arranged on the guide plate, and the first guide roller stretches into the second guide chute.

7. The automated film wrapping line for box products according to claim 1, wherein: the film paper wrapping unit comprises a first wrapping station, a second adsorption supporting platform, a front supporting plate, a rear supporting plate, a front top pushing module, a rear top rolling module, a front side pushing module and a front side rolling module, wherein the first wrapping station and the second wrapping station are sequentially arranged along the conveying direction of a carrier circulating conveying line, the second adsorption supporting platform is arranged at the first wrapping station and has a lifting function, the front supporting plate and the rear supporting plate are arranged at the front and rear sides of the second adsorption supporting platform and are used for bearing film paper, the front top pushing module is arranged below the front supporting plate and pushes a first pasting part on the front side area of the film paper onto the top surface of a packaging box, the rear top rolling module is arranged below the rear supporting plate and pushes the upper side area of the film paper onto the top surface of the packaging box and is pasted with the first pasting part the back side rolling module is arranged below the back top rolling module and covers the film paper back side area on the back side surface of the packing box, the pair of corner side rolling modules are arranged at the back side of the second adsorption supporting platform and lay two lap joints of the film paper back side area on the left side surface and the right side surface of the packing box, the left side rolling module and the right side rolling module are arranged at the left side and the right side of the second adsorption supporting platform and lay the film paper back side area and the right side area on the left side surface and the right side surface of the packing box respectively the film paper packaging machine comprises a first film paper locating module for locating the film paper outline on a first adsorption supporting platform, a transfer module for transferring a packaging box assembly from a first film coating station to a first film coating station, a lifting supporting platform arranged at the first film coating station, a lifting lug back locating module arranged at the joint of a film paper lifting lug and an upper side surface area pressed at the rear side of the lifting supporting platform, a lifting lug back locating module arranged at the joint of the film paper lifting lug and the upper side surface area, a first film paper lifting lug and a second film coating station, a second film paper lifting lug and a third film lifting lug and a fourth film lifting lug, the upper top rolling module for carrying out secondary rolling on the upper side surface area of the film paper at the top of the packaging box assembly is arranged on the front side of the lifting support platform and matched with the lifting lug back positioning module to carry out outward turning and bending on the lifting lug.

8. The automated film wrapping line for box products of claim 7, wherein: the second adsorption supporting platform comprises a sixth motor, an adsorption supporting plate driven by the sixth motor to move up and down, and supporting frames fixed on the left side and the right side of the adsorption supporting plate and used for supporting the left side area and the right side area of the film paper;

9. The automated film wrapping line for box products of claim 7, wherein: the transfer module comprises a ninth motor and two first clamping modules which are driven by the ninth motor to move left and right;

10. The automated film wrapping line for box products of claim 7, wherein: the first conveying mechanism and the second conveying mechanism comprise a twelfth motor, an eleventh supporting plate, a thirteenth motor, a twelfth supporting plate and a second clamping module, wherein the twelfth motor is driven by the twelfth motor to move back and forth between the first coating station and the carrier circulating conveying line or between the second coating station and the carrier circulating conveying line, the thirteenth motor is fixed on the eleventh supporting plate, the twelfth supporting plate is driven by the thirteenth motor to move up and down, and the second clamping module is arranged on the twelfth supporting plate.